- Voltage
- 48V
- IP Rating
- IP20 Non-
- Cut
- 5cm
- Max Run
- 30m
- Warranty
- 7 Years
Ultra Long Natural White 4000K COB LED Strip 48V 480LEDs/m IP20 30M
SKU: COB48V30M-40K-IP20
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IP20 Indoor
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48V DC
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7 Years
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30m Run
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Description
COB stands for Chip on Board. The chips are bonded to the board itself and covered by a single phosphor layer, which is why the lit face shows one even band rather than the scalloping you see from spaced diodes.
The same kitchen lit by each colour temperature in this range
4000K is the neutral point of the range. It renders colour honestly, with no warm cast and no blue, which makes it the sensible choice above a worktop or across a retail display. At 714 lumens per metre it gives genuine task-level brightness, not just accent glow.
48V DC · 480 chips/m · 7.5W/m · 714 lm/m · Ra>90 · 10mm × 2mm · IP20 indoor · cut every 50mm · 7 Years Warranty
The Ra>90 rating means it renders skin tones, worktop stone and paint accurately, without the washed-out, greenish look of cheap tape.
How long can a 48V LED strip run from one power supply?
A 48V COB strip runs up to 30 metres from a single feed at one end, or 50 metres fed from both ends, with no visible fall-off in brightness. At 48V the current is half that of a 24V strip at the same wattage, so voltage drop accrues at roughly half the rate over the same distance.
The copper helps too. Standard tape uses 1oz copper, 35 microns thick, and visibly dims past five metres. This uses 3oz, 105 microns — a third of the resistance. Together that is enough for a whole-room perimeter, a continuous cove, a long shelf line or a facade run in one unbroken length, without a mid-run power injection or a second driver hidden along the way. This is the strip to reach for when 24V tape would need splitting into sections.
How do you size the power supply?
Metres × 7.5W gives the load. Add 25% and round up — a supply run flat out has nothing left for inrush and dies early. Pair it with a 48V constant-voltage driver, never a constant-current type.
Worked through: 10 metres is 75W so take a 100W supply; 20 metres is 150W, take 200W; 30 metres is 225W, take a 300W supply. For a 50 metre dual-feed run, split the load across two supplies, one at each end.
Strip layout — all dimensions in millimetres
Do you need an aluminium profile?
For short accent runs on a clean, cool surface, the 3M backing alone is fine. For longer runs, enclosed coves, or anywhere the strip cannot shed its heat, mount it in an aluminium profile — the channel acts as a heatsink, extends LED life and gives a clean finished edge. At 7.5W per metre, a run beyond about five metres in an enclosed space benefits from one.
Which dimmer works with a 48V COB strip?
Dim it at the driver, never on the strip itself. Pair it with a dimmable 48V constant-voltage driver and dim that — most take a mains trailing-edge dimmer, and 0-10V or DALI models exist for controlled installs. A wall dimmer wired into the DC output will flicker the strip and can damage it. Single-colour white like this dims smoothly from full down to roughly 5%.
Can you shorten it to fit a run?
Yes — cut on any marked pad, spaced 50mm apart, and the shortened length behaves exactly as before. The feed end ships with a 150mm cable attached. Leave it unpowered until it is off the reel; coiled tape cannot shed its heat and the adhesive lifts.
Is it safe over a sink or hob?
No. IP20 offers zero ingress protection, so keep it to dry interiors: cabinet undersides, coves, profiles, shelving. Steam, splashes and cooking residue all rule it out — specify an IP67 strip there. Profile channels vary, so measure the internal opening before ordering.
Is 3000K or 4000K better under cabinets?
4000K, in almost every kitchen. It shows raw ingredients, worktop stone and paint as they really are, where 3000K lays a yellow film across white surfaces. Choose 3000K only if the run is decorative rather than working light.
- Right for: under-cabinet and worktop task lighting, utility rooms, pantries, garages, workshops, retail display.
Your run is cut to the precise length you specify from a 50 metre roll. Thirty metres runs continuously from a single feed at one end, and fifty metres from a feed at each end, so the longest architectural runs stay in one piece rather than being broken into powered sections.
Stocked and dispatched from our Telford unit with free UK delivery, backed by a 7 Years Warranty and a 30-day return window.
Not sure on length or which driver to pair? Send us your run length and we will size the supply for you. Reach the ATOM LED technical team on 01952 370028 or operations@atomled.co.uk, or compare the full COB strip range.
Bespoke LED lighting for UK projects
ATOM LED supplies bespoke, custom-cut LED lighting for UK homes, trade and commercial projects. This LED strip can be cut to your required length at its permitted cutting points. Choose Made to Measure where available, or send us your measurements for a bespoke quotation. Longer installations may need separate runs and a suitable power layout.
- Product Type
- COB LED Strip
- Colour
- Natural White 4000K
- IP Rating
- IP20 Non-Waterproof
- Voltage
- 48V
- Watts Per Metre
- 7.5 W/m
- LEDs Per Metre
- 480
- Max Run Length
- 30m
- CRI
- >90
- Warranty
- 7 Years
Specifications
- Product Type
- COB LED Strip
- Colour
- Natural White 4000K
- IP Rating
- IP20 Non-Waterproof
- LEDs Per Metre
- 480
- Continuous Run
- 30m
- Voltage
- 48V
- Watts Per Metre
- 7.5 W/m
- Metres
- 50m roll
- Width
- 10mm
- Depth
- 1.5mm
- Bending Angle
- Vertical Bend
- Lumens Per Metre
- 714 lm/m
- Cut Points
- 5cm (50mm)
- Operating Temperature
- -25°C to 40°C
- LED Type
- COB
- Average LED Life Hours
- 50,000
- Continuous Operating Hours
- 15 hours
- Certification
- UKCA, CE, RoHS
- Attachment
- 3M Self-Adhesive
- Beam Angle
- 180
- CRI
- >90
- Warranty
- 7 Years
- Brand
- ATOM LED
Technical Documents
Shipping & Returns
On 97% of products — Royal Mail 48-hour tracked
Mainland UK orders over £90 — order by 1pm, Mon–Fri
30-day returns window — free returns on faulty products
01952 370028 · Mon–Fri 9am–5pm
Shipping
Free UK delivery on 97% of products is sent via Royal Mail 48-hour tracked.
Free next day delivery on eligible Mainland UK orders over £90 via DPD (order by 1pm, Mon–Fri).
Orders placed before 1pm UK dispatch the same working day from Telford. Friday 1pm is the cut-off for Monday delivery, excluding paid Saturday Delivery and bank holidays.
Saturday Delivery is available as a paid option at checkout.
Adding profiles? Mainland UK delivery for rigid 1m profiles is £6.95 below £90, with free next day delivery on eligible £90+ orders. Rigid profiles exactly 2m long cost £19.85 per order via DX; rigid profiles over 2m cost £34.65 per order via DX. The highest applicable profile rate applies once to a mixed basket, including orders of £90 or more. Order before 1pm, Monday–Friday, for same-working-day dispatch of in-stock profiles.
Large orders and pallet shipments: call 01952 370028 for a quote.
For more information see our detailed Shipping Page.
International Shipping
We use DPD, Royal Mail and DX for delivery. Orders to Northern Ireland or the Republic of Ireland containing a rigid profile 2m or longer cost £39.85 per order via DX, including mixed baskets and orders over £90. Other destinations and services are priced at checkout.
Returns & Refunds
The 30-day return window applies to non-customised stock items returned in their original, unopened, uncut condition with original packaging. Eligible items include:
- Standard LED strip lights supplied as 5-metre rolls
- Straight aluminium profiles
- Power supplies and drivers
- Accessories (connectors, controllers, dimmers, end caps)
Custom-cut and bespoke orders (made-to-measure strip, custom-spec drivers, custom-length profiles, special-order items) are non-returnable unless faulty.
Faulty products qualify for free returns — we cover the return postage and either replace the item or refund the full cost including original delivery.
Refunds are processed within 5–10 working days of receiving the returned item.
For more details see our Returns & Refunds page.
Reviews
I love the even light distribution and the ease of installation with the two sided tape. The silicone cover did make it trickier to solder the corners. Next time I might try the proud style screw connectors.
Love it and super easy to use
Love it and super easy to use
These are the best led strip lights I have come across so far you barely can see the individual led lights night and night exactly what I needed for my application and don’t get too warm.
Good product quickly delivered, well packaged! Thank you
Acquistata per il camper,va benissimo.Illumina molto bene
This strip is way above the leagues of those similar priced "supposedly high CRI" strips. This COB strip is smooth from the get-go, I also put it into a smoothing plastic channel for extra effect but honestly I needn't have bothered. I can't measure the CRI but my phone camera used to have a green bias with other strips, while this gives a proper warm glow. Lovely and bright, be aware of the wattage per meter! Absolutely needs some heatsink behind it if running fill pelt
This strip is way above the leagues of those similar priced "supposedly high CRI" strips. This COB strip is smooth from the get-go, I also put it into a smoothing plastic channel for extra effect but honestly I needn't have bothered. I can't measure the CRI but my phone camera used to have a green bias with other strips, while this gives a proper warm glow. Lovely and bright, be aware of the wattage per meter! Absolutely needs some heatsink behind it if running fill pelt
Good quality
This light strip looks great... its a solid, consistent strip of light, rather than the individual LEDs on most strips. Easy to work with, and looks great.
Fast shipping and amazing quality. Would definitely recommend
Fast shipping and amazing quality. Would definitely recommend
Good quality, easy to cut to your required length and are able to solder to the points.
Good quality, easy to cut to your required length and are able to solder to the points.
Easy to installSticks really wellLovely bright light
I've been looking for a way to brighten up my kitchen, and this COB LED strip has been a fantastic solution. It's incredibly bright, casting a warm, even glow that illuminates the entire workspace. I love the flexibility of being able to cut it to size, allowing me to fit it perfectly under my cabinets. The adhesive backing makes installation a breeze, and it's held up well so far.The dimming function is a nice touch, allowing me to adjust the brightness depending on the time of day and my needs. It's also surprisingly energy-efficient, which is always a bonus. My only slight criticism is that the strip can be a bit fiddly to work with when cutting and connecting it to the power supply, but the end result is definitely worth the effort.
I've been looking for a way to brighten up my kitchen, and this COB LED strip has been a fantastic solution. It's incredibly bright, casting a warm, even glow that illuminates the entire workspace. I love the flexibility of being able to cut it to size, allowing me to fit it perfectly under my cabinets. The adhesive backing makes installation a breeze, and it's held up well so far.The dimming function is a nice touch, allowing me to adjust the brightness depending on the time of day and my needs. It's also surprisingly energy-efficient, which is always a bonus. My only slight criticism is that the strip can be a bit fiddly to work with when cutting and connecting it to the power supply, but the end result is definitely worth the effort.
Nice and bright.
Nice and bright.
Very nice colour. Love installing strip lighting for example under the bed, under counter space etc. Adds an extra dimension to a room. Does the job and works well.
Very nice colour. Love installing strip lighting for example under the bed, under counter space etc. Adds an extra dimension to a room. Does the job and works well.
These LED’s are very close together and provide a continuous very bright light. Extremely easy to cut to the length required, with cutting points at quite small intervals. I put it inside a (separately purchased) diffuser strip which further assisted the diffusion of this very bright light. Dimmable from 100% to 10%. Remote control can rotate brightness with different modes. Very good product and value. Recommended.
These LED’s are very close together and provide a continuous very bright light. Extremely easy to cut to the length required, with cutting points at quite small intervals. I put it inside a (separately purchased) diffuser strip which further assisted the diffusion of this very bright light. Dimmable from 100% to 10%. Remote control can rotate brightness with different modes. Very good product and value. Recommended.
Works fine. a little too warm(orangey) for one of my projects but generally ok.
Works fine. a little too warm(orangey) for one of my projects but generally ok.
I think this is a rather good cob strip. The light is very consistent with no variation in brightness along the length of the strip. There are plenty of snip points, and the adhesive is pretty good. Do take care and use a good power supply, rated to the length you're using.
I think this is a rather good cob strip. The light is very consistent with no variation in brightness along the length of the strip. There are plenty of snip points, and the adhesive is pretty good. Do take care and use a good power supply, rated to the length you're using.
👍
👍
I like the option to trim the length without affecting the circuit. The tape adheres to the surface required securely while the remote control delivers the option to turn on/off and adjust the brightness. The light is bright enough to not require the main lights on in the room but can also be used as a background light for watching the television and/or security if needed.
Frequently Asked Questions
What is the difference between IP65, IP67, and IP68?
IP65 handles surface splashes only and is not suitable for UK outdoor conditions or bathroom wet zones under BS7671. IP67 is rated for temporary immersion and covers outdoor garden installations, most bathroom zones, and exposed architectural features. IP68 handles continuous submersion for ponds, fountains, and fully exposed outdoor applications. For most UK garden and decking projects, IP67 is the correct choice.
Can I cut this product to a custom length?
Yes. ATOM LED products can be cut at the marked cut points without voiding the warranty. Many competitors restrict cuts to 50–100mm intervals, which wastes offcuts on tight custom runs. Use sharp scissors or a craft knife for a clean cut, then seal the end with a suitable end cap.
What size driver do I need?
Multiply the total metres by the wattage per metre, then add 20% headroom. For example: 10 metres of 24V neon flex at 9W/m = 90W total, so you need a minimum 108W driver. Never load a driver above 80% capacity for long-term reliability.
Should I choose 12V, 24V, or 48V?
Choose 12V for caravans, cars, boats, and any project powered by a 12V battery. Choose 24V for most home and trade installs where you need dependable run length with lower voltage drop. Choose 48V for longer architectural runs where extra distance and single-feed flexibility matter. For underwater or submerged installs, use IP68 Waterproof lights and the correct driver for that product; do not use 48V underwater.
What is your warranty?
ATOM LED offers product-specific warranties: 7 years on single-colour COB strip, 5 years on RGB and RGBW COB strip, and 4 years on LED neon flex. The warranty covers manufacturing defects. Call 01952 370028 for warranty claims.
Do you offer free delivery?
Yes. Free UK delivery on 97% of products via Royal Mail 48-hour tracked. Free next day delivery via DPD on eligible Mainland UK orders over £90 (order by 1pm, Mon–Fri). Rigid profiles 2m or longer have fixed DX delivery charges and do not qualify for free delivery.
ATOM LED
Light. Precision. Confidence.
From garden borders to commercial facades, ATOM LED neon flex delivers consistent, dot-free illumination that lasts. UK stock, UK support, up to 4 years warranty.
Shop All Neon FlexMade To Measure
Contact us
Tell us the run length you need and we’ll confirm the best setup for your project.
- Product
- Ultra Long Natural White 4000K COB LED Strip 48V 480LEDs/m IP20 30M
- SKU
- COB48V30M-40K-IP20